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Showing 1 to 10 of 10 entries
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Novel technique for biliary reconstruction using an isolated gastric tube with a vascularized pedicle: a live animal experimental study and the first clinical case.

Annals of surgical innovation and research

Helmy AA, Hamad MA, Aly AM, Sherif T, Hashem M, El-Sers DA, Semieka M.
PMID: 21985492
Ann Surg Innov Res. 2011 Oct 10;5:8. doi: 10.1186/1750-1164-5-8.

BACKGROUND: Biliary tract reconstruction continues to be a challenging surgical problem. Multiple experimental attempts have been reported to reconstruct biliary defects with different materials and variable outcome. Our aim was to evaluate a new method for biliary reconstruction using...

Light-matter coupling and non-equilibrium dynamics of exchange-split trions in monolayer WS.

The Journal of chemical physics

Zipfel J, Wagner K, Ziegler JD, Taniguchi T, Watanabe K, Semina MA, Chernikov A.
PMID: 32716167
J Chem Phys. 2020 Jul 21;153(3):034706. doi: 10.1063/5.0012721.

Monolayers of transition metal dichalcogenides present an intriguing platform to investigate the interplay of excitonic complexes in two-dimensional semiconductors. Here, we use optical spectroscopy to study the light-matter coupling and non-equilibrium relaxation dynamics of three-particle exciton states, commonly known...

Heterochromia iridis in water buffaloes (Bubalus bubalis).

Veterinary ophthalmology

Misk NA, Semieka MA, Fathy A.
PMID: 11397231
Vet Ophthalmol. 1998;1(4):195-201. doi: 10.1046/j.1463-5224.1998.00036.x.

This study included 45 unaffected animals and 593 animals affected with heterochromia irides, and 85 enucleated eyeballs with heterochromia irides. The classification of heterochromia irides, morphology of normal and heterochromic irides, and the histology, ultrastructure, and scanning electron microscopy...

Affections of the salivary ducts in buffaloes.

Open veterinary journal

Misk NA, Misk TN, Semieka MA, Ahmed AF.
PMID: 26623341
Open Vet J. 2014;4(1):65-8. Epub 2014 Jun 22.

The aim of the present study was to determine different affections of the salivary ducts in buffaloes with special reference to diagnosis and treatment. The study was carried out on 39 buffaloes suffering from different affections of the salivary...

Observation of High Angular Momentum Excitons in Cuprous Oxide.

Physical review letters

Thewes J, Heckötter J, Kazimierczuk T, Aßmann M, Fröhlich D, Bayer M, Semina MA, Glazov MM.
PMID: 26207502
Phys Rev Lett. 2015 Jul 10;115(2):027402. doi: 10.1103/PhysRevLett.115.027402. Epub 2015 Jul 08.

The recent observation of dipole-allowed P excitons up to principal quantum numbers of n=25 in cuprous oxide has given insight into exciton states with unprecedented spectral resolution. While so far the exciton description as a hydrogenlike complex has been...

Coherence expansion and polariton condensate formation in a semiconductor microcavity.

Physical review letters

Belykh VV, Sibeldin NN, Kulakovskii VD, Glazov MM, Semina MA, Schneider C, Höfling S, Kamp M, Forchel A.
PMID: 23581369
Phys Rev Lett. 2013 Mar 29;110(13):137402. doi: 10.1103/PhysRevLett.110.137402. Epub 2013 Mar 26.

The dynamics of the expansion of the first order spatial coherence g(1) for a polariton system in a high-Q GaAs microcavity was investigated on the basis of Young's double slit experiment under 3 ps pulse excitation at the conditions...

Autoionization and Dressing of Excited Excitons by Free Carriers in Monolayer WSe_{2}.

Physical review letters

Wagner K, Wietek E, Ziegler JD, Semina MA, Taniguchi T, Watanabe K, Zipfel J, Glazov MM, Chernikov A.
PMID: 33449708
Phys Rev Lett. 2020 Dec 31;125(26):267401. doi: 10.1103/PhysRevLett.125.267401.

We experimentally demonstrate dressing of the excited exciton states by a continuously tunable Fermi sea of free charge carriers in a monolayer semiconductor. It represents an unusual scenario of two-particle excitations of charged excitons previously inaccessible in conventional material...

Control of the Exciton Radiative Lifetime in van der Waals Heterostructures.

Physical review letters

Fang HH, Han B, Robert C, Semina MA, Lagarde D, Courtade E, Taniguchi T, Watanabe K, Amand T, Urbaszek B, Glazov MM, Marie X.
PMID: 31491178
Phys Rev Lett. 2019 Aug 09;123(6):067401. doi: 10.1103/PhysRevLett.123.067401.

Optical properties of atomically thin transition metal dichalcogenides are controlled by robust excitons characterized by a very large oscillator strengths. Encapsulation of monolayers such as MoSe_{2} in hexagonal boron nitride (hBN) yields narrow optical transitions approaching the homogenous exciton...

Electron and Hole g-Factors and Spin Dynamics of Negatively Charged Excitons in CdSe/CdS Colloidal Nanoplatelets with Thick Shells.

Nano letters

Shornikova EV, Biadala L, Yakovlev DR, Feng D, Sapega VF, Flipo N, Golovatenko AA, Semina MA, Rodina AV, Mitioglu AA, Ballottin MV, Christianen PCM, Kusrayev YG, Nasilowski M, Dubertret B, Bayer M.
PMID: 29160075
Nano Lett. 2018 Jan 10;18(1):373-380. doi: 10.1021/acs.nanolett.7b04203. Epub 2017 Nov 28.

We address spin properties and spin dynamics of carriers and charged excitons in CdSe/CdS colloidal nanoplatelets with thick shells. Magneto-optical studies are performed by time-resolved and polarization-resolved photoluminescence, spin-flip Raman scattering and picosecond pump-probe Faraday rotation in magnetic fields...

InSe as a case between 3D and 2D layered crystals for excitons.

Nature communications

Shubina TV, Desrat W, Moret M, Tiberj A, Briot O, Davydov VY, Platonov AV, Semina MA, Gil B.
PMID: 31375686
Nat Commun. 2019 Aug 02;10(1):3479. doi: 10.1038/s41467-019-11487-0.

InSe is a promising material in many aspects where the role of excitons is decisive. Here we report the sequential appearance in its luminescence of the exciton, the biexciton, and the P-band of the exciton-exciton scattering while the excitation...

Showing 1 to 10 of 10 entries